Question

fill in the blanks below
ezra’s cells need oxygen from air and glucose from the _x__ in his food in order for
him to be able to play basketball. oxygen molecules pass through ezra’s respiratory system
and get sent through the circulatory system to his cells. the starch in his food needs to get
broken down into__y by his _z___system and then get sent to his cells through
the circulatory system. his cells release energy through a chemical reaction between
glucose and oxygen. when his cells release energy, he will have enough energy to play
basketball.

select the correct word for blank \x\ *
○ protein
○ starch
○ amino acid
○ glucose

select the correct word for blank \y\ *
○ protein
○ amino acid
○ glucose
○ starch

Explanation:

For blank "X":

To determine the correct word for blank "X", we analyze the context. The sentence says "glucose from the __X in his food". We know that starch is a complex carbohydrate that gets broken down into glucose, and the options are protein, starch, amino acid, or glucose. Since glucose comes from the breakdown of starch in food (and the later part of the passage mentions starch being broken down), the correct source of glucose in food here is starch? Wait, no—wait, the question is about where glucose comes from in food. Wait, actually, starch is a polysaccharide, and when we eat starch - containing food, the starch is broken down into glucose. But the blank "X" is the source of glucose in food. Wait, let's re - read: "Ezra’s cells need oxygen from air and glucose from the X in his food". So we need to find what in food provides glucose. Starch is a carbohydrate that is broken down into glucose. Protein is broken into amino acids, amino acid is the breakdown product of protein, and glucose is the end product of starch breakdown. So the correct option for X is starch? Wait, no, wait the options: the options for X are protein, starch, amino acid, glucose. Wait, actually, when we eat food, starch (a complex carbohydrate) is present, and it is broken down into glucose. But the question is "glucose from the X in his food". So the X should be the component in food that is the source of glucose. Starch is a component in food that is broken down into glucose. Wait, but let's check the later part: "The starch in his food needs to get broken down intoY". So starch is in the food, and it is broken down into Y. So for X, the glucose comes from the starch in the food? Wait, no, maybe I made a mistake. Wait, the options: if X is starch, then glucose comes from starch. Let's check the options again. The options for X are protein, starch, amino acid, glucose. Protein is for building blocks, broken into amino acids. Amino acid is from protein. Glucose is the end product. Starch is a polysaccharide that is broken into glucose. So the correct answer for X is starch? Wait, no, wait the question is "glucose from the X in his food". So the X is the substance in food that is the source of glucose. So starch is in food, and when digested, it becomes glucose. So X is starch? Wait, but let's check the options again. Wait, maybe I messed up. Wait, the other part: "The starch in his food needs to get broken down intoY". So Y is the breakdown product of starch. Starch is broken down into glucose. So for Y, it's glucose. For X, the glucose comes from the starch in the food. So X is starch? Wait, but the options for X: let's see the options again. The options are protein, starch, amino acid, glucose. So the correct answer for X is starch? Wait, no, wait maybe I made a mistake. Wait, the first sentence: "Ezra’s cells need oxygen from air and glucose from the X__ in his food". So what in food gives glucose? Starch is a carbohydrate that is a source of glucose (since it's broken into glucose). So X is starch. Wait, but let's check the options. So the correct option for X is B. starch? Wait, no, the options are: first option protein, second starch, third amino acid, fourth glucose. So for X, the answer is starch (option B: starch).

For blank "Y":

For blank "Y", the sentence is "The starch in his food needs to get broken down into__Y__". We know that starch (a polysaccharide) is broken down into glucose (a monosaccharide) during digestion. Protein is broken into amino acids, amino acid is from protein, and starch is the original substance. So the breakdown product of starch is glucose. So the correct option for Y is glucose (option C: glucose).

Answer:

For blank "X": B. starch
For blank "Y": C. glucose